{"id":7744,"key":"Inverter_for_fluorescent_lamp","title":"Inverter for fluorescent lamp","latest":{"id":1207945,"timestamp":"2025-11-27T23:12:17Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:CCFL inverter schema.PNG|thumb|CCFL inverter schema]]\n\n{{Project data\n| authors = User:Stef Breukel\n| status = Designed\n| location = Amsterdam\n}}\n\n{{Device data}}\n\nThe CCFL (Cold Cathode Fluorescent Lamp) inverter works in general the same as other converter systems in a much smaler scale.\n\n[[File:to 220.PNG|thumb|to 220|300px]]\n\nschema components:\n\nQ1, Q2 = NPN TIP31, to-220\n\nR1, R2 = 8.2 KOhms\n\nD1, D2 = 1N4001 / 4148\n\nC1 = 10uF, 25V,\n\nC2 = 22 pF, 2KV\n\nL1 = 80uH\n\nT1 = FE16C or equivalent transformer\n\n'''CCFL inverter transistors equivalent'''\n\n{| class=\"wikitable\"\n!\n!\n!\n!\n!\n!\n!\n|-\n| D1616\n| ╦\n| 2SD592A\n| ╦\n| KT3117A\n|\n|\n|-\n|\n| ║\n|\n| ╠\n| BC337\n|\n|\n|-\n|\n| ║\n|\n| ╠\n| 2SD1616\n| ╦\n| BC637\n|-\n|\n| ║\n|\n| ║\n|\n| ╠\n| BC639\n|-\n|\n| ║\n|\n| ║\n|\n| ╚\n| 2SD667\n|-\n|\n| ║\n|\n| ╚\n| 2SD592ANC\n| ╦\n| 2N3859A\n|-\n|\n| ║\n|\n|\n|\n| ╠\n| BC637\n|-\n|\n| ║\n|\n|\n|\n| ╠\n| KT3117A\n|-\n|\n| ║\n|\n|\n|\n| ╠\n| 2SD667\n|-\n|\n| ║\n|\n|\n|\n| ╚\n| BC639\n|-\n|-\n|\n| ╚\n| 2SC3328\n| ╦\n| 2N6516\n|\n|\n|-\n|\n|\n|\n| ╠\n| MPS651\n|\n|\n|-\n|\n|\n|\n| ╠\n| KT504A\n| ╦\n| D1490\n|-\n|\n|\n|\n| ║\n|\n| ╠\n| 2SD1490\n|-\n|\n|\n|\n| ║\n|\n| ╠\n| 2SD1616\n|-\n|\n|\n|\n| ║\n|\n| ╠\n| 2SC4489\n|-\n|\n|\n|\n| ║\n|\n| ╠\n| 2SD2182\n|-\n|\n|\n|\n| ║\n|\n| ╚\n| 2SD218\n|-\n|\n|\n|\n| ║\n|\n|\n|\n|-\n|\n|\n|\n| ╚\n| 2SC3328-O\n| ╦\n| 2N6516\n|-\n|\n|\n|\n|\n|\n| ╠\n| KT504A\n|-\n|\n|\n|\n|\n|\n| ╚\n| MPS651\n|}\n\n== Inverter Transformer ==\n\n[[File:T1 ccfl inverter transformer.PNG|thumb|T1 ccfl inverter transformer|300px]]\n\nT1 = FE16C or equivalent transformer\n\n{| class=\"wikitable\"\n| TURN RATIO:\n| input =\n| 1.8\n| output =\n| 8\n| .\n| .\n|-\n| PRIMARY INDUCTANCE:\n| P1=\n| 33.5\n| P2=\n| 44.5\n| P3=\n| 3.7uH\n|-\n| PRIMARY DIAMETER:\n| P1=\n| mm\n| P2=\n| mm\n| P3=\n| mm\n|-\n| SECONDARY INDUCTANCE:\n| S1=\n| 150mH\n| .\n| .\n| .\n| .\n|-\n| SECONDARY DIAMETER:\n| S1=\n| mm\n| .\n| .\n| .\n| .\n|-\n| PRIMARY DCR:\n| P1=\n| 0.3Ohm\n| P2=\n| 0.3Ohm\n| P3=\n| 0.1 Ohm\n|-\n| SECONDARY DCR:\n| S1=\n| 120 Ohm\n| .\n| .\n| .\n| .\n|-\n| CURRENT RATING:\n| Primary\n| 230mA\n| Secondary\n| 30mA\n| .\n| .\n|}\n\nP3=Winding for optional feedback control\n\n== Measure wire thickness ==\n\nHow to measure thin isolated copper wire thickness for a self made transformer coil component\n\nWire diameter: 0.05 ~ 0.20mm\n\n{| class=\"wikitable\"\n! DIAMETER\n! WIRE COLOUR\n|-\n| 0.01\n| .\n|-\n| 0.02\n| .\n|-\n| 0.03\n| .\n|-\n| 0.04\n| .\n|-\n| 0.05\n| .\n|-\n| 0.06\n| .\n|-\n| 0.07\n| .\n|-\n| 0.08\n| .\n|-\n| 0.1\n| .\n|}\n\n[[3rd world CCFL lamp (2007 model)]]\n\n== External links ==\n\n* [[Wikipedia:CCFL inverter]]\n* [[Wikipedia:Cold cathode]]\n\n{{Page data\n| license = CC-BY-SA-3.0\n| keywords = ccfl, cold cathode fluorescent lamps, lamps, electronics, 3rd world arm lamp, Electric lighting, inverter\n| authors = User:Stef Breukel\n| published = 2007\n| organizations = Demotech\n| description = Appropedia explains how to build an inverter for cold cathode lamps with affordable parts and reliable power output for lighting needs.\n}}\n\n[[Category:How tos]]\n[[Category:Electric lighting]]\n[[Category:Electronics]]"}